class Contact {
  final String name;
  final String? avatarUrl;
  final String indexLetter;

  const Contact({
    required this.name,
    this.avatarUrl,
    required this.indexLetter,
  });
}

final List<Contact> mockContacts = [
  // 家人
  const Contact(name: '妻子', indexLetter: 'Q'),
  const Contact(name: '妈妈', indexLetter: 'M'),
  const Contact(name: '爸爸', indexLetter: 'B'),
  const Contact(name: '弟弟', indexLetter: 'D'),
  
  // 技术团队核心成员
  const Contact(name: 'Alex Chen - AI架构师', indexLetter: 'A'),
  const Contact(name: 'David Wang - 芯片研发总监', indexLetter: 'D'),
  const Contact(name: 'Grace Wu - 模型优化专家', indexLetter: 'G'),
  const Contact(name: 'Kevin Lin - 算法团队Leader', indexLetter: 'K'),
  const Contact(name: 'Sam Gao - 技术总监', indexLetter: 'S'),
  const Contact(name: 'Nancy Xu - 产品技术对接', indexLetter: 'N'),
  const Contact(name: 'Mike Huang - 硬件工程师', indexLetter: 'M'),
  const Contact(name: 'Lisa Yang - 深度学习研究员', indexLetter: 'L'),
  const Contact(name: 'Peter Zhu - 系统架构师', indexLetter: 'P'),
  const Contact(name: 'Rachel Guo - 数据科学家', indexLetter: 'R'),
  const Contact(name: 'Tom He - 前端技术负责人', indexLetter: 'T'),
  const Contact(name: 'Emma Liu - 后端架构师', indexLetter: 'E'),
  const Contact(name: 'Frank Zhao - DevOps工程师', indexLetter: 'F'),
  const Contact(name: 'Iris Zhou - 测试团队Leader', indexLetter: 'I'),
  const Contact(name: 'Jack Ma - 算法工程师', indexLetter: 'J'),
  const Contact(name: 'Oliver Tang - 芯片验证工程师', indexLetter: 'O'),
  const Contact(name: 'Vivian Luo - AI产品经理', indexLetter: 'V'),
  const Contact(name: 'William Feng - 技术专家', indexLetter: 'W'),
  const Contact(name: 'Yuki Chen - 实习生', indexLetter: 'Y'),
  const Contact(name: 'Zoe Pan - 算法工程师', indexLetter: 'Z'),
];
